Spring-wheel.



A. MOORE.

SPRING WHEEL.

Arruonxol rmm um. 1a. 1901.

rammed Dec. 7, 1909.

w zms.

INVENTOQ: ALFRED MOORE.

9mm fiwpfia $1M AM WITNESSES! ATTORNEYS.

ALFRED MOORE, F DETROIT. MICHIGAN.

SPRING-WHEEL.

Specification of Letters Patent.

Patented Dec. 7, 1909.

Application filed September 13, 1907. Serial No. 392.651.

To all whom it may concern:

Be itknown that I, ALFRnu Moons, a citi- -zen of the United States of America, residing'at- Detroit. in the county of Wayne and b'tate of lllichigan, have invented certain 'newand useful Improvements in Spring- Wheels, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to spring wheels for vehicles and consists in the matters hereinafter set forth. and more particularly of the wheel.

pointed out in the appended claims.

Referring to the drawings, Figure 1 is a view in cross-section of a wheel embodying features of the invention. Fig. 2 is a view in elevation of a'portion of the wheel with ;parts broken away. Fig. 3 is a fragmentary detail view in elevation of a modified form Fig. 4 is a view in section of the modified form.

I In general terms, the wheel consists of an inner main hub adapted to be jonrnaled on an axle and an outer floating hub held normally in concentric relation with the inner hub between suitable guides by a set of load sustaining springs held constantly in tension by a set of opposing springs which prevent any compression or buckling of the load springs as the latter change their position when the wheel revolves.

In the drawings, 1 represents a main hub adapted to be rotatably secured on an axle 2 *in' the usual manner, as by a bur 3 and washer 4. A circular i'lange 5 is fixed to or preferably formed integrally on the inner end of the hub and a correspondingly sized removable flange 6 having a sleeve 7 is screw-threaded on to the outer end or otherwise adjustably secured thereon.

iA floating or movable hub having an enlarged central aperture encircles the fixed hub between the flanges which act as guides. This hub may be built up like the navel of any wheel of conventional design provided with metallic end or face plates 8 which afford bearing surfaces against the flanges. Spokes 9, felly 10, rim 11, and tire 12, all of standard construction, completing the wheel body.

In the preferred form of the'wheel radial guide arms 13 :11" inserted between the spokes, and may be of wood metal sheathed,

- orentirely of metal. The floating hub is suspended orcentered normally on the fixed hubby pairs of radially disposed main springs 1% secured at the inner ends in any preferred manner to or near the rims of the flanges 5 and 6 and at their outer ends connected to collars 15 sliding on the guides and hearing against auxiliary springs .16 whose inward movements are checked by suitable stops 17. The auxiliarysprings are so pro portioned'and adjusted as to close together and actas ferrules when the weight or load tends to stretch the main springs, while they expand and prevent buckling of the main springs when the latter are compressed by the load during aportion of the revolution of the wheel; Each pair of main springs may be replaced when desired by a sin le spring 18 attached to Opposite points 0 a. collar .19 by asuitable hanger or stirrup 21, in which case the end of the arm is preferably connected to the adjacent spokes by a cross-brace 20 properly secured thereto, so that the side pull of the spring is carried directly to the wheel body.-

Stops of any preferred form are supplied which permit rotation of the outer hub on the inner through it limited arc. These may be in the shape of sets of opposing lugs :23 and 22 on the flanges 5 and 6 and the face plates 8.

Other details may be changed without departing from the spirit of the invention, and I do not care to limitmyself to any particular form or arrangement of parts.

\Vhat I claim as my invention is 1. A. spring wheel having a main hub, a floating hub enci cling the main hub, means adapted to maintain the hubs in proper lateral relation and to confine their relative rotation to a limited are, main springs radially disposed on the main hub, and radially disposed auxiliary springs on the floating hub connected .at their outer ends to the outer ends of the main springs.

2. A spring wheel having a main hub, a

floating hub encircling the main hub, means adapted to maintain the hubs in proper lateral relation and to confine their relative rotation to a limited are, main springs radi allv secured at their inner ends to the main hub. and radially disposed auxiliary springs on the floating hub connected at their outer ends to the outer ends of the main springs and adapted to close and act. as ferrules when the main springs are under load tension.

3. A'spring .wheel having a main hub, a floating hub encircling the main hub, means adapted to maintain the hubs in proper rotation to a limited arc, radial guides on the floating hub, auxiliary springs on the guides, and radially disposed main springs connected at their inner ends to the main hub and at their outer endsto the outer ends of the auxiliary springs, said auxiliary springs being adapted to eloserand act as ferrules when the main springs are under load tens1on.

- 5. A spring wheel having'a main hub, a

floating hub encir'pling the main hub, rigid spokes on thefloating hub, a felly on the spokes, means adapted to maintain the hubs tween the spokes, auxiliary springs on the p in proper lateral relation and to confine their relative rotation to a limited are, radial guides on the floating hub, lnterposed beguides and radially disposed main springs connected at their inner ends to the mam hub and at their outer ends to the outer ends of the auxiliary sprin S. -6. A spring wheel having a main hub, a

floating huh encircling the main hub, rigid spokes on the floating hub, a felly on the spokes, means adapted to maintain the hubs in proper lateral relation'and to confine their relative rotation to a limited are, radial guides on tllu floating hub, interposed between the spokes, collars on the guides, stops on the guldes, auxiliary springs on the guides between the collars and stops and radially disposed main springs connected at their inner ends to the main hub and at their outer ends to the collars.

7. A spring wheel having a main hub, 21 floating hub encircling the main hub, rigid spokes on the floating hub,a felly on the spokes, flan es adjustabl secured on the main hub a apted to inalntain the floating hub in proper lateral relation thereto, stops on the flanges and on the floating hub adapted to confine the relative rotation of the two hubs to a limited -arc, radial guides on the floating hub, interposed between the spokes, auxiliary springs on the guides and radially disposed main springs connected at their inner ends to the main hub and at their outer ends to the outer ends of the auxiliary springs.

In testimony whereof I aflix my signature in presence of two witnesses. I

Witnesses:

C. R. STICKNEY, Orro F. BABTHEL.

ALFRED MOORE. 

